With the CL Email Harvester/Collector, you can target CL groups and try to serve them up CPA offers. For example, you could harvest emails from the "For Sale - Car&Trucks" category and send them a email with a CPA offer on how to find the value of their vehicle they are selling. In the message you send them, mention that you think they are not asking enough for the car/truck, and how you can help them get more money for it. I know if I was selling a car for $1200 and you said you could get me more, I would listen.
As far as mailing them, you could go with something like Ymailer. You can pick that up at BHBodeezy.c0m. It will let you mail out using Yahoo. He also has a Yahoo account creator, but I don't think he is selling that anymore at the moment. You can only gain access to it by joining improtools.c0m.
Get someone to make you Yahoo accounts, for like $20 for 1K I think the going rate is now, and your good to go. So lets recap.
1> Harvest CL Emails in the category of your choice.
2> Find relevant CPA offer to present to prospects.
3> Use YMailer or similar mailer to send to the emails you just harvested.
4> Become a Millionaire! (hopefully anyway).
Hope that helps.